package com.kaifamiao.demo.d0812;

import java.util.Iterator;
import java.util.Vector;

public class Test {

    public static void main(String[] args) {
        Vector vector = new Vector();

        for (int i = 0; i < 100; i ++){
            vector.add(""+ i);
        }

        System.out.println(vector.capacity());
        System.out.println(vector.size());

        // 集合不建议在 for 循环中删除元素. 不要在遍历中使用 修改集合的操作 ( add remove )
        Iterator iterator = vector.iterator();
        int count = 0;
        while(iterator.hasNext()){
            iterator.next(); // 获取下一个元素
            iterator.remove();
            if ( ++count >= 99){
                break;
            }
        }

        System.out.println(vector.capacity());

        System.out.println(vector.size());
    }
}
